At least one patient died during the experiments.

至少一名患者在当时的试验中死亡。

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During experiments, the researchers found that the smokier the fire, the bigger the effect.

在实验中，研究者发现火中的烟越重，效果越是显著。

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Second, do not mistreat animal during the process of experiments.

第二，不虐待动物实验过程中。

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Second, do not mistreat animal during the process of experiments.

第二，不虐待动物实验过程中。

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